ODs Faktasider. Brønnbane / Leting. Generell informasjon. Brønnbane navn 7/11-2 EXPLORATION. Faktakart i nytt vindu. lenke

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1 Generell informasjon Brønnbane navn 7/11-2 Type Formål Status Faktakart i nytt vindu Hovedområde Felt Funn EXPLORATION APPRAISAL P&A lenke NORTH SEA COD 7/11-1 COD Brønn navn 7/11-2 Seismisk lokalisering NJV 5704 SP: 1248 Boret i utvinningstillatelse 018 Boreoperatør Boretillatelse 17-L Boreinnretning Bore dager 86 Phillips Petroleum Company Norway OCEAN TRAVELER Borestart Boreslutt Frigitt dato Publiseringsdato Opprinnelig formål Gjenåpnet Innhold Funnbrønnbane APPRAISAL NO GAS/CONDENSATE NO 1. nivå med hydrokarboner, alder PALEOCENE 1. nivå med hydrokarboner, formasjon Avstand, boredekk - midlere havflate Vanndybde ved midlere havflate FORTIES FM Totalt målt dybde (MD) [m RKB] Maks inklinasjon [ ] 2 Temperatur ved bunn av brønnbanen [ C] Eldste penetrerte alder Eldste penetrerte formasjon Geodetisk datum NS grader ØV grader 125 LATE CRETACEOUS TOR FM ED ' 15.2'' N 2 24' 26.5'' E NS UTM Side 1 av 6

2 ØV UTM UTM sone 31 NPDID for brønnbanen 156 Brønnhistorie General Well 7/11-2 was drilled, ca 1.5 km from the UK Border on the eastern side of the Breiflabb Basin in the southern North Sea. The objective was to test the hydrocarbon potential in the Paleocene on the west flank of the Cod structure, and to confirm the gas and condensate discovery made by the 7/11-1 well. Well 7/11-1 tested up to 430 Sm3 condensate and Sm3 gas /day from the Late Paleocene Forties Formation. Operations and results Appraisal well 7/11-2 was spudded with the semi-submersible installation Ocean Traveller on 21 July 1968 and drilled to TD at 3427 m in the Late Cretaceous Tor Formation. Tight hole was experienced when pulling out of the 17 12" hole. The hole was washed back to TD and mud weight increased to 14 ppg. Logging and casing operations could then be successfully carried out. The well was drilled with sea water down to 1219 m where the system was changed to a salt-saturated Drispac-Desco- Flosal type. The well tested gas and condensate in Paleocene sandstones (the Forties Formation). One core was taken in the Paleocene sandstone in the interval m to 3045 m. No wire line fluid samples were taken. The well was permanently abandoned on as a dry well. Testing Three drill stem tests were performed. DST 1 tested the interval m to m. This test produced only 3.7 m3 salt water-cut mud and mud filtrate. DST2 tested the interval m to m. This test produced 221 Sm3 gas and Sm3 gas /day through a 3/4" choke. These rates correspond to a gas/condensate ratio of 2121 Sm3/Sm3, but the GCR varied from 1251 Sm3/Sm3 on a 1/4" choke to 3111 on a 1" choke. The condensate gravity was fairly constant for all rates; 61.0 to 62.1 deg API. DST 3 tested the interval m to 2998 m. This test produced no formation fluid to surface. After injecting 4 m3 acid (HCl) and 1.6 m3 diesel 16.5 m3 diesel+mud flowed back from the formation. > Borekaks i OD Side 2 av 6

3 Borekaksprøve, topp dybde Borekaksprøve, bunn dybde Borekaksprøve tilgjengelig NO Borekjerner i OD Kjerneprøve Kjerneprøve - topp dybde Kjerneprøve - bunn Kjerneprøve dybde dybde - enhet [m ] Total kjerneprøve lengde 15.5 Kjerneprøve tilgjengelig YES Litostratigrafi Top depth Lithostrat. unit 109 NORDLAND GP 1549 HORDALAND GP 2981 ROGALAND GP 2981 BALDER FM 2997 SELE FM 3025 FORTIES FM 3175 MAUREEN FM 3220 SHETLAND GP 3220 EKOFISK FM 3346 TOR FM er - eldre OD WDSS rapporter og andre relaterte dokumenter navn format størrelse [KB] 156_01_WDSS_General_Information pdf 0.20 er - rapportert av utvinningstillatelsen (frigitt ihht til regelverk) navn format størrelse [KB] 156_7_11_2_AAODC_REPORTS PDF Side 3 av 6

4 156_7_11_2_CHANGE_IN_DRILLING_PROGRA M_ON_EXPLORATORY_TEST PDF _7_11_2_CLASTIC_SEDIMENTS PDF _7_11_2_COD PDF _7_11_2_COMPLEX_LITHOLOGY_ANALYSI S 156_7_11_2_CONTINENTAL_SHELF_DRILL_C UTTINGS_AND_CORE_SAMPLES PDF PDF _7_11_2_CORE_ANALYSIS_RESULTS PDF _7_11_2_DRILL_STEM_TEST_DATA_TEST- NO-1 156_7_11_2_DRILL_STEM_TEST_DATA_TEST _NO-2 156_7_11_2_DRILL_STEM_TEST_DATA_TEST _NO-3 156_7_11_2_HIGH_RESOLUTION_DIPMETER- REF _7_11_2_HIGH_RESOLUTION_DIPMETER_ REF-24 PDF 1.73 PDF 5.02 PDF 3.43 PDF 3.33 PDF _7_11_2_INDIVIDUAL_WELL_RECORD PDF _7_11_2_INTERNATIONAL_DEPARTMENT_ INDIVIDUAL_WELL_RECORD 156_7_11_2_LOGGING_RAPPORT_AV_PALEO CEN 156_7_11_2_MICROPALAEONTOLOGICAL_CH ART PDF PDF 0.16 PDF _7_11_2_RESERVOIR_FLUID_STUDY PDF _7_11_2_SEDIMENTOLOGY_STUDY PDF _7_11_2_SIDEWALL_CORE_FORM PDF _7_11_2_SURFACE_AND_BOTTOM_HOLE_ READINGS PDF _7_11_2_SURVEY_REPORT PDF _7_11_2_TEMPORARY_SUSPENSION_PRO CEDURE 156_7_11_2_THE_MICROPALAEONTOLOGY_A ND_STRATIGRAPHY PDF 0.15 PDF _7_11_2_WELL_COMPLETION_REPORT PDF _7_11_2_WELL_COMPLETION_REPORT_PR ODUCTION_LICENSE_ _7_11_2_WELL_PRODUCTION_TEST_DST _NO-1 156_7_11_2_WELL_PRODUCTION_TEST_DST _NO-2 156_7_11_2_WELL_PRODUCTION_TEST_DST _NO-3 PDF 1.75 PDF 5.01 PDF 2.87 PDF 0.31 Side 4 av 6

5 er - OD publikasjoner navn 156_01_NPD_Paper_No.10_Lithology Well_7 _11_2 156_02_NPD_Paper_No.10_Lithologic_Correla tion_chart Well_7_11_2 156_03_NPD_Paper_No.10_Paleocene_Correla tion_map Well_7_11_2 format størrelse [KB] pdf pdf pdf Borestrengtester (DST) Test Fra dybde MD Til dybde MD Reduksjonsven til størrelse [mm] Test Endelig avstengningstrykk [MPa] Endelig strømningstrykk [MPa] Bunnhullstrykk [MPa] Borehullstempera tur [ C] Test 1.0 Olje produksjon [Sm3/dag] Gass produksjon [Sm3/dag] Oljetetthet [g/cm3] Gasstyngde rel. luft GOR [m3/m3 ] Logger Type logg Topp dyp Bunn dyp for for logg logg CBL FDC GR HDT Side 5 av 6

6 IES LL MLL SGR SNP VSP Foringinsrør og formasjonsstyrketester Type utforing Utforing diam. [tommer] Utforing dybde Brønnbane diam. [tommer] Brønnbane dyp Slam egenvekt ekvivalent [g/cm3] Type formasjonstest CONDUCTOR LOT SURF.COND LOT INTERM. 13 3/ / LOT INTERM. 9 5/ / LOT OPEN HOLE / LOT Boreslam Dybde Egenvekt, Viskositet, Flytegrense Type slam MD slam [g/cm3] slam [mpa.s] [Pa] waterbased waterbased waterbased waterbased waterbased Dato, måling Side 6 av 6